65 lines
2.1 KiB
Text
65 lines
2.1 KiB
Text
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Merging other init systems to cinit
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Nico Schottelius 2005-06-02
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1. Preamble
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2. General to do
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3. Create a script
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1. Preamble
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There is no tool available to merge any existing init-system-configuration
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to cinit style. This is not because the author of cinit does not
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care about support for that. He simply he has
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a) no access to every init-system available
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b) not the time to analyze every init system
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He instead spends the time to improve and bugfix cinit.
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This does not exclude that he accepts scripts, which do the work.
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In fact, creating and submitting a merge tool is much
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appreciated.
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2. General to do
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1. Choose your target init and possibly target platform:
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- sysvinit may be different on AIX, SuSE and Debian
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- /etc/rc may look different on each *BSD
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- Sometimes even same platforms differ in versions:
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SuSE 5.1 uses a different configuration then SuSE 9.0
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So decide whether you want and can write a general merge tool
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or if you have to specialize.
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After deciding, name the script you want to write with the following
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syntax:
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cinit-merge.$init-$platform-$version
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$platform and $version (either both or only platform) can be omitted.
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Examples:
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cinit-merge.sysvinit-debian-3.0
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cinit-merge.minit
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2. Analyze how it works, detect the mechanism in it
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Your script has to detect if dependencies exist and resolve
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them. It has to take care of special configurations and possibly
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warn the user.
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3. Create a script
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Now, after you learned how the old init system works, you can start creating
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the merge-script (naming see above).
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This merge script
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a) will perhaps not cover full old system (if so, warnings should be printed
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b) should try to avoid using old (shell)-scripts, as starting
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a shell for every service needed makes starting up slow
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c) will include some basic features, that are needed everytime on this
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platform (setting kernel configuration, hostname, etc)
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